... have been found :)
We had to extract the old wiki from a backup and put it on a test site.
You can browse it here: http://gentoo.warthogs.hbd.com:8003/ubuntu/wiki/
Any missing images should now be available at that location, but they'll
need to be uploaded again as new attachments to the correct pages. AFAIR
Matt even had a partial list of affected pages.
Anyone want to give a hand? :)
Sorry for the slip-up. We should have realized this would happen, but ...
Thanks,
Henrik